transport Flashcards
1
Q
simple diffusion graph
A
linear
2
Q
specificity and passive facilitated diffusion
A
transports 1 thing only
- hyperbolic
- can also be inhibited
carrier proteins can change shape to allow in
- can also be gated: specific thing causes open/close
3
Q
active transport and thermo
A
atp needed
- in the delta g eqn, the c2 is larger than c1
- if charged product, takes more energy
4
Q
transport of acid into stomach
A
ph is 1-2, body ph is 7
- concentration gradient is 1x10^6
5
Q
rbc glucose carrier
A
passive, glucose is taken in by rbc
- can also traspot other sugars
- won’t transport l sugars or d fructose
6
Q
glucose uptake from intestine and kidney
A
- active transport, requires na, symporter
- when na is pumped back out, requires atp
7
Q
na/k atpase
A
high k, low na inside
low k, high na outside
- 3na out for evvery 2k in
- oubain inhibits atpase in all muscles
8
Q
na/k atpase structure
A
- large subunit is 100,000 and 2 small at 50,000